Home / 12,885.48-19,289.32-11,653.47

Finding the Fourth Proportional to 12,885.48, 19,289.32 and 11,653.47

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Solution

The fourth proportional to 12,885.48, 19,289.32 and 11,653.47 is: 17,445.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,885.48 : 19,289.32 = 11,653.47 : x
  2. Step 2: Convert to fraction form
    12,885.48/19,289.32 = 11,653.47/x
  3. Step 3: Cross multiply
    12,885.48x = 19,289.32 × 11,653.47
  4. Step 4: Simplify right side
    12,885.48x = 224,787,555.14
  5. Step 5: Solve for x
    x = 224,787,555.14/12,885.48
  6. Step 6: Final answer
    x = 17,445.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.